# SEC 13F-HR Institutional Fund Holdings by CIK

> SEC 13F-HR Institutional Fund Holdings by CIK is a paid API for AI agents from agents.x402stock.xyz, paid per call via MPP, $0.03/call, status unknown (last checked 2026-10-10).

Returns the latest 13F-HR institutional holdings for a fund or investment manager identified by SEC CIK, including all reported positions with issuer, CUSIP, market value, share count, option type, and voting authority.

## Facts

- Endpoint: GET https://agents.x402stock.xyz/api/v1/fund-holdings/{cik}?utm_source=zero.xyz
- Price: $0.03/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 0
- Provider: agents.x402stock.xyz
- Website: https://agents.x402stock.xyz
- Canonical page: https://www.zero.xyz/c/agents-x402stock-xyz-sec-13f-hr-institutional-fund-holdings-by-cik-7439acb4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_1HkFZ_XknTSLsp_WxBEQX

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability agents-x402stock-xyz-sec-13f-hr-institutional-fund-holdings-by-cik-7439acb4
```

Example prompt: Pull up the latest 13F-HR institutional holdings for the fund with SEC CIK 0001350694 — I want to see all their reported positions sorted by market value, including share counts and any options.

## When to prefer this

Use this endpoint when you need structured, machine-readable 13F-HR institutional holdings data for a specific fund or investment manager identified by SEC CIK. It is ideal for portfolio analysis, competitive intelligence, or tracking large institutional positions with full detail (CUSIP, voting authority, options). Prefer this over manually parsing SEC EDGAR HTML filings or when you need the data sorted and aggregated with total portfolio value already computed.

## Known failure modes

- Invalid or non-existent CIK returns an error or empty result
- Fund has not filed a 13F-HR (not a qualifying institutional investment manager) — no data returned
- CIK belongs to a company filer rather than an investment manager — filing may not exist
- limit parameter out of range (must be > 0 and ≤ 1000) returns validation error
- SEC EDGAR upstream unavailability may cause fetch failure
- Payment failure (insufficient USDC balance) blocks the request

## How this service works

Institutional 13F holdings for a fund by CIK: every position, value, and shares

## Output

A JSON object containing the filer name, CIK, filing metadata (accession number, filing date, report date, form type), total portfolio value, total position count, and an array of holdings sorted by market value descending. Each holding includes issuer name, title of class, CUSIP, market value in thousands, share count, share type, put/call flag, investment discretion classification, and sole/shared/none voting authority breakdowns.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "cik"
 ],
 "properties": {
  "cik": {
   "type": "string",
   "description": "SEC Central Index Key (CIK) of the fund or investment manager."
  },
  "limit": {
   "type": "integer",
   "default": 100,
   "maximum": 1000,
   "exclusiveMinimum": 0
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "cik",
  "filer",
  "source",
  "as_of",
  "data"
 ],
 "properties": {
  "cik": {
   "type": "string"
  },
  "data": {
   "type": "object",
   "required": [
    "form",
    "accession",
    "filing_date",
    "report_date",
    "total_positions",
    "total_value",
    "count",
    "holdings"
   ],
   "properties": {
    "form": {
     "type": "string"
    },
    "count": {
     "type": "number"
    },
    "holdings": {
     "type": "array",
     "items": {
      "type": "object",
      "required": [
       "issuer",
       "title_of_class",
       "cusip",
       "value",
       "shares",
       "shares_type",
       "put_call",
       "investment_discretion",
       "voting_sole",
       "voting_shared",
       "voting_none"
      ],
      "properties": {
       "cusip": {
        "anyOf": [
         {
          "type": "string"
         },
         {
          "type": "null"
         }
        ]
       },
       "value": {
        "anyOf": [
         {
          "type": "number"
         },
         {
          "type": "null"
         }
        ]
       },
       "issuer": {
        "anyOf": [
         {
          "type": "string"
         },
         {
          "type": "null"
         }
        ]
       },
       "shares": {
        "anyOf": [
         {
          "type": "number"
         },
         {
          "type": "null"
         }
        ]
       },
       "put_call": {
        "anyOf": [
         {
          "type": "string"
         },
         {
          "type": "null"
         }
        ]
       },
       "shares_type": {
        "anyOf": [
         {
          "type": "string"
         },
         {
          "type": "null"
         }
        ]
       },
       "voting_none": {
        "anyOf": [
         {
          "type": "number"
         },
         {
          "type": "null"
         }
        ]
       },
       "voting_sole": {
        "anyOf": [
         {
          "type": "number"
         },
         {
          "type": "null"
         }
        ]
       },
       "voting_shared": {
        "anyOf": [
         {
          "type": "number"
         },
         {
          "type": "null"
         }
        ]
       },
       "title_of_class": {
        "anyOf": [
         {
          "type": "string"
         },
         {
          "type": "null"
         }
        ]
       },
       "investment_discretion": {
        "anyOf": [
         {
          "type": "string"
         },
         {

… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agents-x402stock-xyz-sec-13f-hr-institutional-fund-holdings-by-cik-7439acb4/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agents.x402stock.xyz](https://www.zero.xyz/host/agents.x402stock.xyz/llms.txt)